View Compilation Error

0_0_36177797_27854.cpp: In function 'int main()':
0_0_36177797_27854.cpp:6:9: error: 'cin' was not declared in this scope
  while (cin >> a)
         ^
0_0_36177797_27854.cpp:8:29: error: 'pow' was not declared in this scope
   float v= 4 * PI * pow(a, 3);
                             ^
0_0_36177797_27854.cpp:9:3: error: 'cout' was not declared in this scope
   cout.setf(ios_base::fixed, ios_base::floatfield);
   ^
0_0_36177797_27854.cpp:9:13: error: 'ios_base' has not been declared
   cout.setf(ios_base::fixed, ios_base::floatfield);
             ^
0_0_36177797_27854.cpp:9:30: error: 'ios_base' has not been declared
   cout.setf(ios_base::fixed, ios_base::floatfield);
                              ^
0_0_36177797_27854.cpp:10:13: error: 'ios_base' has not been declared
   cout.setf(ios_base::showpoint);
             ^
0_0_36177797_27854.cpp:12:16: error: 'endl' was not declared in this scope
   cout << v << endl;
                ^